I installed the Reverse proxy on IIS6 and it was working just fine. Recently in the last couple of days, it appears to timeout every 15-20 minutes and restarting the app pool seems to bring the site backup. Going directly to the proxied site works fine.
When loading it up from another site (proxy) it takes some time to load and errors out with "The request site http:<site.com> could not be found"
Any ideas? Is there a setting where this timeout value needs to be adjusted?